Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Kim, Yun Sang
Committee Member
Street, Jason Tyler
Committee Member
Zhang, Xuefeng
Date of Degree
5-13-2022
Document Type
Graduate Thesis - Open Access
Major
Wood Science and Wood Products/Pulp and Paper Technology
Degree Name
Master of Science (M.S.)
College
College of Forest Resources
Department
Department of Sustainable Bioproducts
Abstract
Advanced oxidation of organic pollutants with TiO2 photocatalysts is limited due to the wide bandgap of TiO2, 3.2 eV, which requires ultraviolet (UV) radiation. When nanosized TiO2 is modified by carbon doping, charge recombination is inhibited and the bandgap is narrowed, allowing for efficient photodegradation under visible light. Here, we propose a flame spray pyrolysis (FSP) technique to create TiO2. The facile process of FSP has been successful in preparing highly crystalline TiO2 nanoparticles. Using the same procedure to deposit TiO2 onto biochar, the photocatalyst was doped by the carbonaceous material. The morphology, crystalline and electronic structure of the FSP TiO2 and TiO2-decorated biochar (TiO2-BC) were characterized by SEM, XRD, TGA, DLS, and diffuse reflectance UV-vis spectroscopy. Photocatalytic performance of TiO2 and TiO2-BC was investigated for model organic contaminants in an aqueous solution under UV and visible light, which will be compared to that of Degussa P25 TiO2 as a control.
Recommended Citation
Babik, Noah, "Photocatalytic degradation of organic contaminants by titania particles produced by flame spray pyrolysis" (2022). Theses and Dissertations. 5440.
https://scholarsjunction.msstate.edu/td/5440
Included in
Catalysis and Reaction Engineering Commons, Nanoscience and Nanotechnology Commons, Sustainability Commons, Water Resource Management Commons